Nonset automatic stop mechanism



l. Bianca. NONSET AUTUMTIC STOP MECHANISM.

APPLICATION FILED IUNE 2l. I92I.

1,429,059, Patenfedsept.12,1922.

2 SHEETS-SHEET l.-

A TTORN y l. BELLodH.

NONSET AUTOMATIC STOP MECHANISM.

APPLICATION man :uns 21, 1921.

1,429,059. l PatentedSpt. 12, 1922.

2 SHEETS-SHEET 2.

er ma fr.

Patented Septalfi, i922.

' frs A A c sented o r MN E wtf' Y oma-nj', "KY:

' 'nonsnir auroit/marc szrorfivinoiiiaiyrsivi-ngc Apfiicauon iiieriiuneci, '1921/1v semil No. Maira 1i ,i i i,

T all whom z'zmay concern:

' Be it known that, 'I sALi-o BnLLc'iori,'av citi- ,zen-of the UnitedStates,4 residing at vNew York city, in the county `of New YorlnStatel.

of New York, have 'invented certain-new and'use-fiil Improvements in Nonset Auto-I matic Stop Mechanism, of whichv the following is a description, referencebeingf had lto thev accompanying drawing, and to the figures ofireference marked thereon.v

Thisfinvention relates to non-set automatic stop mechanism for phonographs.

` ing of a record to, automatically The main object of this invention is to provide a simple, inexpensiveY lmeclrianis'm which is operative upon cessation 'of playbrake mechanism of the phonograph, irrespective of the length of the record and without' anyv adjustment of. the brake tripping mechanism for'the length ofthe particular record to be played. A

,A further object of this invention is to provide means to prevent operation ofthe brake tripping mechanism while setting they tone arm in its initial'groove.

A still further object is to provide means for preventing premature tripping of. the ybrake mechanism during playing of the rec-v ord.

f inotherobject ofthe invention'is to pro# vide means for preventing the tripping 'of the brake mechanism while moving the tone arm laterally torecord playing position.

Still another objeotoi1 the invention is to provide means whereby the automatic trip-v ping mechanism may be rendered iinoperaF manual con-trol tive so as to permit wholly ofthe' brakeV tripping mechanism.v

f @ther and further objects will appear af` ter reading the following speciicatioiifand.

claims in connection with .the accompanying drawings, in which Figure 1 is a planview of trippingv mechanism' as applied 4to' a phonograph,y the outline' of the turntable being shown in dotted lines.`

lFigure 2 is an elevation of a fragmentary portion thereof; 1 v Figure 5 illustrates one of of the positions assumed lby a tripping pin and `arm forming a portion of my tripping mechanism. p

,Figure l illustrates another positionaslsumed by the same partsfwith thetrip pin f effective' to release' thebrake lever.

.Figure 5 is a modified form oftripping in detail, 1 indicates the tablee-,oiaaphono-vin Figure 1. Securedtothefpostof the'tone `shaped bracket *115, secured abt-its lower end to f the base plate' by means oscrews .112,1 al- ,60 and 13 and1a-horizontalprojection14.?

igure 8 `is Ia section'throiigh a portion {Q 51;

my tripsarm drivinginechanismifi2 y Ifigurev g 9 is an lele'vatiorliIof-the ,San 6 5 Springe detntf-.loeiigI shown in.. dotted lines',`

v `Fi`gurej10fisa plangview ,ofthesaine;` l

Now referring tojthe, several figures. more j graph Cabinet 'through` whic improjectsff-th spindleQ-:for driving the-:turntable 3..; iufnlso rotatably mounted on .thetablelistghe tone .a arm 4: shown only;fragmentarily'fn1Figure 2. and the posts ofy whichl is shown in' *section varm L.tas by `means. ofwsc'rews 5.'.is'asegf y' mental rack 6, the same-beingspacedffrom the tonearm by meansof `a 'supporthaving p v @f Y 8o.

reaches 7. Cooperating with-the raf/l 'al a shaft 9 stepped in a3 base plate 510,]A Supthough p it is of course.' understoodthatthe .saine may be braced;wel-dedjorotherwise,se-' 1 cured thereto.l The base plateilQ'has. in-expin-ion 16 freelyA rotatable-.1 yon the i shaft 9.'. zij AThis;` 'detent permits1cloclwiser otati'on of fthe pinion. '16,3as' AviewedFin'flign v1 but vprevents anti-clockwise rotation thereoirfvlly Resting on ,the upper :face of theflpinionj` 16 and f1 pawlcarrier 20,:rthe. same constr-aiiinfiiilg thevv pinion 16 to',movegtherewithl'by"reasonbf the pins 18'projectingwithinfapertures 21 in thecarrier 20...v kA-lsofsecured tothe-,shaft 'K14 i 1 of whiohengage a springpressed-Jpawl 28` :mountedon theicarr'ierQO-tordrag-theqpawl ry `and carrier around in clockwise" rotation,

It is'to be understood that: the? Afarmi19,1ijjs -clamped'betweeli the pin carrier @sufficiently drag-the Asam' with them upon rotational movement thereof but yet the frictional Contact is loose enough to permit movement of the arm 19 relative to the shaft 9 upon application of a slight eX- rternal force tending to rotate the arm about the shaft as an aXis. It will now be understood that as the tone arm moves to the left in Fig. 1, the rack 6 moves therewith, which so rotates the pinion 8 and through it the ratchet 22, ratchet carrier 20 controlled thereby and pins 18, as to cause the arm' 19 to move in the same direction as the tone arm. To move the arm 19 in the opposite direction, a pin 24 is provided, the same being mounted on a pulley 25 journaled on a bearing 30 secured on a brake plate 21, said pulley being driven from the spindle 2 by means of a belt 26 trained over the puliey 25 and a second and smaller pulley 27 fastened to the spindle 2. The arm 19 at its free end is bifurcated` to provide prongs 28 and 29, the pin engaging the prong 28 to move the arm 19 to one position and the prong 29 to another and brake tripping position as will beeXplained shortly.

To brake the turntable a bell crank bralre lever 32 is provided, the same being mounted on a stud 33 secured in the brake base plate 31, one end of the lever being provided with a rubber or felt washer 34 to engage the vflange of the turntable and the other end being provided with a resetting handle 35 to release the brake. To urge the brake lever towardy braking position, a spring` 36 is pro vided as may be readily understood. To restrain the brake in non-braking position, a notched brake tripping lever 37 is provided, in the notch of which a pinv 38 secured to the brake lever is retained. The lever 37 vhas an elongated arm 39 provided at its free end with an upstanding portion 40 in the path of movement of arm 19. 1t will now be understood that upon suiiicient movement of the arm 19, the arm 39 will be moved to release the brake mechanism to thereby stop the turntable from rotating. A manual trip is provided in the form of a stud 41 formed on or secured to the lever 37. To limit the movement of the arm 19 in its clockwise movement an abutment arm 42 is adjustably mounted on base plate 10 as by a slot and screw adjustment 43, said arm at its fre-e end being suitably provided with a sound deadening bumper 44 of felt or rubber.

Pivotally mounted on the ear 13 is a lever 45, one end of which is provided with a lip 46 which at times is adapted to engage be- :neath the rack 6 in order to maintain the opposite and heavier end 47 of the lever in elevated position. It can be readily seen,

however, that when the rack is moved clockwise a few'degrees, that the lip 46 is released to thereby permit the opposite end of lever 45 to be depressed. The end 47 serves during the playing of the initial portion of the record to cause a spring member 48 pivoted lon a pintle 49 secured to the eXtension 14 of the base plate 10 to be raised in position to resiliently engage the arm 19 when it is swungto the position indicated in Fig. 3 'to thereby restore it to the position shown in Fig. 1.

The operation of the device will new be described. Normally the parts are arranged as shown in Fig. 1. When the spindle 2 begins to rotate, the pulleys 27 and 25, and consequently the pin 24, all rotate in a clockwise direction. r1`he pin 24 engages the prong 28 and moves the arm 19 over one step as shown in Fig. 3. At this time, however', the arm 19 is resiliently engaged by the spring 48 and when the pin 24 passes out of the bifurcation of the arm 19 the same is pushed back toward the position shown in Fig. 1. rllhis operation is repeated until the tone'arm has traveled along the record suiiiciently to cause the rack 6 to release the lip 46 of the lever 45. The end 47 now is depressed so that the spring 48 is no longer in the path of travel of the arm 19. Under these conditions, when the pin 24 has moved tie arm- 19 to the position shown in Fig. 3, there is no spring force tending to restore the arm 19 to its original position. At this timehowever, .he movement of the rack 6 rotates the pinion 8 to thereby frictionally drag the arm 19 as explained heretofore to the position shown in Fig. 1. This operation is repeated until the tone arm and consequently the rack stops moving, whereupon the arm 19 is left in the position indicated in Fig. 4 until the pulley v25 makes a complete revolution and the pin engages the prong 29 to further move the arm 19 so as to cause the same to engage projection 49 on arm 39 to trip the brake. 1t can be readily seen that in the absence of the spring 48 and controlling mechanism therefor, the pin 24 may successively engage prongs 28 and 29 to thereby cause an undesired and inadvertent tripping of the brake mechanism while the tone arm is being held in the hand to set the same in the Vfirst `groove or while the turntable is speeding up to record playing speed.

"With mechanisms of the prior art, the brake mechanisms frequently are tripped during playing of the record due te swaying of the tone arm back and forth when playing a warped or otherwise imperfect record; with my invention, due to the provision of the knurled surface, which may be as fine as may be desired, on the pinion 16, and the spring detent 15, the swaying of the tone arm in one direction is not imparted to the arm 19, thereby preventing accidental contact of the arm 19 with the projection 40; the backward movements of the tone arm merely cause the ratchet to move anti-clocklio n 4igiaepse wise,'l5`ig'. 10, relative to the ratchet carrier 2O and the remaining mechanism; vIn like manner when the tone v'armismoved tore'- play ay record or some'intermediate portion thereof, the brakejv mechanisms willVL notbe automaticallytripped. the other hand the ratchet mechanism 22,v 23v operates to rcause clockwisemovement of the arm 19. vupon clockwise movement of any character of the tone arm,

The angular distance'lmoved over by the arm 19 relative to the angular movement'of the tone arm may be chosen :is desired by properly positioning the rack from the cen" ter of curvature and by properlyy choosingv the character ofthe pinion and the linjeness of teeth'. ALikewise the period of'time within which the arm 19 may bev restoredl tothe position illustrated in Fig; 1 may be prede-V termined byfthe ratio of the diameterof puileys 27 andy 25.,"

` Tolprovide against the contingencyl of the failure of the device to operate due to the pin striking against-` thel pointy of a prong 28 or 291a two part pin., as illus-` trated in Fig.` `5, maybe employed, the same comprising a buttend50, which' maybe inserted inthe pulley 2 5,fand two members 51 and 52" pivoted. on a pintle and resiliently maintained in the position? shown by. a leaf spring 54. If now the pin should Astrike head on against the point of aprong,

thetop portion would be bent back to per the pin to pass underneath the` arm 19 and upon the next revolution of the same,

aside of the pin would probably engage a Vsideofone of the Aprongs Vto move the arm 19. vrIhe pin, of course, is positioned' so Q what Iv claim as new is:

that it can be bent'back only when striking head on against a point of the prongs. The arm 19l is made extensible by the provision of av pin 'andslotconnection' 55 to accommodate thedevice to diiferent ,dis tances between tone armvand spindle'cen ters. 4

. In order to bel able to'render the-entire automatic device inoperative, the frame 10l `is secured to the table at" oneend by `a single screw 56 wh`ile `a screw ,5T passes :through .an .arcuate slot 58jin the member 11.l ByA loosening the screws l56 and`57, it`

is evident thatftlie frame 10 together with the ,shaft and all vit carries may-be swung trolled by said lever" and cam mechanism` controlled by said tone arm for pivoting said lever.

shaft, a pawl and carrier rotated thereby v when said l pinion is rotated 2in one. direclnisin being adaptedto move said armin one posite direction.l

invention,

` afi phonograph,` a brake tripping mechanism comprising 1an' oscillatable Varm, f ,means driven. from the: tone arm of the 4phonograph -for movingsaid arm ii'io'ne l 7,0 driving mechanism-for moving said arinfin direction, lmeans driven from the Y turntable the opposite direction, and additionalj'fi'ever I controlled lmeans controlled. bythe y tone arm for movingthe arm in' saidrst direction... l

7'5 v table, a' brake thereforandl` fa. Iron-set auto- 3. Ina phonograph, a tonejarm, aturnf matic tripping mechanism for. 4said brake to said pinion, a"ratchet'securedjto said tion, a second pinion. freelyyrotatable on said. shaft androtated ink onev direction 'by-v t said carrier, resilient meansfpreventing rotation o'fi'said second pinionin the opposite direction, an arm having ahub frictionally second pinion, said vshaftfcarried. mecha-vi` comprising a rack secured to Vthe tone "arm, i a pinionfoperated thereby, ashaftsecured `engagedbetween the p'awl carrier ,and said direction only, ameans for moving said arm 'v injthe oppositeI direction," anda brake trip'- ofsai'd arm and adapted to be' tripped upon 4. 'In a phonograph, a tone farm, a turntable, a! brake therefor, and` ai n onlset'autdmatic tripping mechanism for. said brake comprising a rack secured tothe 'tone arinfIOO- a. pinion operatedv thereby, a `shaft'secured to ping mechanism in thelf path of m' c` vernenty f said pinion, a ratchet' secured to said-shaft, l a pawl'and carrier rotatedthereby''Wlieir said 'pinion is rotated :in one direction, a'f'second pinion" freely rotatable on said'"slrafti` fan'd'rotated in' oneA direction' saidlcarrier, f

resilient means preventing rotation ofrsaid t second pinion inv the oppositedirection, f yan pinion, said shaft carried mechanism being ad-apted to move said arm lin Vone direction l only, .a' means forymovin-g said arm inthe opp osite f direction,` a brake tripping inechanism inthe "path ofmoveinent lofsaid arm and adapted to be trippedv upon'sufhci'ent movement of said arm. in said opposite. di-

Fm hailing 2L hub frCffionally.I engged' berection andfmeans formendering the autol matic tripping mechanism ineffective to trip f i2o` the brakemechanism.A

5. In a' phonograph, a tone 'arm,`.a`turn. table, a brake therefor andy anon-set. automatic" tripping kmechanism forl said brake comprising 'a' .rack secured tothe `tone arm.,

' a pinion operated thereby,` a shaft secured,"

tosaid pinion, a ratchet secured to said shaft, a pawl and carrierv rotatedthereby f when said pinion .is rotated in one direction, a` second pinion freely rotatable ony said shaft and rotated in one direction bysaid carrier, resilient means preventing rotation of said second pinion in the opposite direction, an arm having a hub frictionally engaged between the pavvl carrier and said second pinion. said shaft carried mechanism being adapted to move said arm in one direction only, means for moving said arm in said one direction independently of said mechanism, comprising a lever pivote'd so .that at times one endis depressed by said rack, a resilient device controlled by the other end, said resilientl device lbeing in the path of movement of sai-d arm only When the opposite end of the lever is depressed by said rack, a means for moving said arm in the opposite direction, and a brake tripping mechanism in the path of movement of said arm and adapted to be tripped upon sufficient movement of said arm in said opposite direction.

6. ln a phonograph, a tone arm, aturntable, a brake therefor and a non-set automatic tripping mechanism` for said brake comprising a rack vsecured to the tone arm, a pinionoperated thereby, a shaft secured to said pinion,I a ratchet secured to said shaft, a paivl and carrier rotated thereby When said pinion is rotated in one direction, a second pinion freely rotatable on said shaft and rotated in one direction by said carrier, resilient means preventing rotation of said second pinion in the opposite direction, an arm having a hub frictionally engaged bet-Ween the paWl carrier and said second pinion, said shaft carried mechanism being adapted to move said arm in one direction only, an abutment 'for said arm, a means for moving said arm in the opposite direction, and a brake tripping mechanism in the path of movement ot said arm and adapted to be tripped upon sufficient` movement of said arm in said opposite direction.

7. ln a phonograph, a turntable, driving and braking mechanism therefor, means operative to prevent operation of said braking mechanisml While the tone arm of the phonograph is in initial playing position, and means for rendering the automatic tripping mechanism ineflective to trip the brake mechanism. n

S. In a phonograph, a brake trip-ping mechanism comprising a pronged arm, tone arm controlled means for moving said arm in one direction, turntable driving means for moving said arm in the opposite direction, said latter means comprising a rotatable member, a two part pin resiliently connected together mounted thereon, said pin being adapted to engage the sides of the prongs on said arm, and brake tripping mechanism controlled by said arm.

9. lin a phonograpln'a tone arm, a turntable driving mechanism andv braking mechanism therefor, tripping mechanism for .said braking mechanism including a tone arm and an arm moved thereby, means controlled by said latter arm to trip said braking mechanism when moved in one direction and means to permit said tone arm to move said controlled arm in the opposite direction only, whereby movement of the tone arm to initial playing position on the record or swaying movements of the tone arm will not effect a tripping of the braking mechanism.

l0. In a phonograph, a tone arm, a turntable, driving and braking mechanism for said turntable, and tripping mechanism for said braking mechanism including an oscillatable arm, means connected With said tone arm for moving said oscillatable arm in one direction, means to prevent said tone arm connected means from moving said oscillatable arm in the opposite direction, means connected with the turntable driving mechanism for moving said oscillatable arm in said opposite direction for engaging the tripping` mechanism upon sufficient movement of the oscillatable arm. l

il. in a phonograph, a turntable, driving and braking mechanism therefor, automatic and manual tripping mechanism for said braking mechanism and means whereby the automatic tripping mechanism may be rendered ineifective.

l2'. in a phonograph, a turntable, driving and tripping mechanism therefor, automatic and manual tripping mechanism for said braking mechanism, driving mechanism i'or said automatic tripping mechanism and means whereby the automatic tripping mechanism may be moved out of engagement vwith said driving mechanism.

1.3. ln a phonoghaph, a tone arm, a turntable, driving and braking mechanism for the turntable, manual and automatic tripping mechanism for said braking mechanism, means for effecting a movement of said automatic tripping mechanism comprising a tone arm carried means and means actuated by said turntable driving mechanism, a support for a portion of said automatic tripping mechanism and means whereby said support may be moved so as to disengage the automatic tripping mechanism from its several actuating means. i

ln Witness whereof, l afliX my signature.

'ISAAC BELLOCH. 

